Docker monitoring with Prometheus
Monitoring Docker nodes and containers is an essential part of managing Docker. There are various tools available for monitoring Docker. While you can use traditional tools such as Nagios, Prometheus is gaining ground in cloud-native monitoring because of its simplicity and pluggable architecture.
Prometheus is a free, open source monitoring tool that provides a dimensional data model, efficient and straightforward querying using the Prometheus query language (PromQL), efficient time series databases, and modern alerting capabilities.
It has several exporters available for exporting data from various sources and supports both virtual machines and containers. Before we delve into the details, let’s look at some of the challenges with container monitoring.
Challenges with container monitoring
From a conceptual point of view, there is no difference between container monitoring and the traditional method. You still need metrics, logs...